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Finding the Fourth Proportional to 544.45, 817.49 and 525.55

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Solution

The fourth proportional to 544.45, 817.49 and 525.55 is: 789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.45 : 817.49 = 525.55 : x
  2. Step 2: Convert to fraction form
    544.45/817.49 = 525.55/x
  3. Step 3: Cross multiply
    544.45x = 817.49 × 525.55
  4. Step 4: Simplify right side
    544.45x = 429,631.87
  5. Step 5: Solve for x
    x = 429,631.87/544.45
  6. Step 6: Final answer
    x = 789.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.